Apparatus for retouching negatives



v B. B. CORE. Apparatus for Retouching Negatives. No. 232,115. PatentedSept. 14,1880.

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wi l we NVFEA'ERS. PHOTO-LITHOGRAFHER SHING D C UNITED STATES PATENTELIJAH B. CORE, OF LINCOLN, ILLINOIS.

APPARATUS FOR RETOUCHlNG NEGATIVES.

SPECIFICATION formingpart of Letters Patent No. 232,115, dated September14, 1880,

Application filed March 10, 1650. (N0 model.)

To all whom it may concern Be it known that I, ELIJAH 13.0mm, a residentof the city of Lincoln, in the county of Logan and State of Illinois,have invented a new and useful Improvement in an Apparatus forRetouching and Improving the Negatives taken by Photographers for thepurpose of Printing Photographs, of which the following is aspecification.

This invention relates to certain new and useful improvements in anapparatus especially designed for removing the spots and blemishes anddefects from negatives before printing the photographs, by retouchingthe same with a pencil or some other suitable article.

The drawing represents a view of the invention and the manner of workingthe same.

A represents a drive-wheel, of any suitable and appropriate size, whichis put in motion by means of the arm B and treadle G. The belt or cordpassing around the wheelAis attached to and puts in motion the smallerwheel D. To this wheel D is attached the short arm E, which is alsoattached to the longer arm F. The arm F extends and is'connected andfastened to the rod or support which holds the treadle O. (Said rod ismarked a.)

G represents a rubber ball, or its equivalent, hollow and air-tight,which is placed and rests under the arm or lever F. To G is fastened thetube H, also of rubber and of appropriate length, which, in turn, isattached to the pencil I in the following manner, to wit: The tube H isadjusted to the regulator K, which is hollow and threaded on theoutside, and may be considered a part of the pencil I. The following isa description of the inside of the pencil I: The end of the regulator Kreaches and extends into the chamber L of the pencil. In the side ofthis chamber L are some small apertures for the purpose of furnishingair.

In the chamber L is the solid ball M, of any suitable material, whichmoves at pleasure in the chamber L, between the end of the regulator Kand the rod N. The rod N also enters the chamber L, and extends onthrough the pencil, an d has fastened at its other extremity the pointof lead-pencil, or any other point that may be found useful for thepurposes of the invention, which point we mark S. O is an ordinaryspiral spring around the rod N, working between the end of the chamberL, and attached to the rod N at a point, P, in any suitable manner.

It is a rubber band or a spring attached to the arm F in such a manneras to regulate its motion, andbe ofusein aidingin counteracting theupward pressure of the ball G.

The manner of working the invention is very simple, and as follows, towit: Upon the working of the treadle (J the drivewvheel A is put inmotion. This revolves the small wheel D by means of the belt. The wheelI) gives a motion to the arm E, which, in connection with the band orspring Pt, imparts a vertical motion to the arm F. The arm F, in itsdownward strokes, strikes the ball G, driving the air from it throughthe tube H and regulator K, and against the ball M in the chamber L.This solid ball M is thus made to strike the rod N, giving it an outwardtendency. The upward movement of the arm F releases the pressure upon G,which, bein g released, returns to its normal position, forming a vacuumin the chamber L, and the air passing into said chamber through theapertures thereof causes the ball M to return to the end of regulator K.The motion thus produced gives the rod N and the point S a very rapidmotion. The force of the stroke is governed andregulated by theregulator K, as by this means the dis tance in the chamber L, betweenthe end of the regulator K and the rod N, in which the ball M moves ischanged and varied. The greater this distance the harder the stroke willbe.

Now, by holding the pencil I in the hand and placing the point S uponthe negative to be retouched in the different places the very rapid anddelicate strokes of the point S will very soon remove all defects, suchas spots and blemishes, in the mostsa-tisfactery manner.

What I claim as new, and desire to secure by Letters Patent, is

I. In an apparatus for retouching negatives, the combination, with thepencil S and tube H, spring 0, and ball M, of the hollow rubber ball G,arm or lever F, with its atball M, rod N, adjustable spring 0, and pen-IO cil S, the several parts constructed and relatively arranged tooperate substantially as and for the purpose herein shown and described.

ELIJAH B. CORE. Witnesses:

WM. B. JONES, W. O. J ONES.

